One and Three.
16 and 21 only have one common factor, the number one.
first three common factors of 3,4,5
Common factors are one and three.
Sorry, only two common factors! The common factors are: 1, 3
Three factors in common.
The factors of three are one and three.
Since 9 is a factor of 27, all of its factors are common.
you multiply them together
The common factors of the three numbers are 1, 2, and 4.
The only factors common to all three numbers are... 1 & 5
The factors of three are both odd numbers.